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authorÆvar Arnfjörð Bjarmason <avarab@gmail.com>2021-08-05 01:25:42 (GMT)
committerJunio C Hamano <gitster@pobox.com>2021-08-05 15:59:37 (GMT)
commitf234da80197b3115cd3c280e98d3393a884a9327 (patch)
treed31a236cb1036266d7d43f83250ef49d7e836fb6
parent760486a1f7a141b0d50b1c9c709ac1882968955c (diff)
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serve.[ch]: remove "serve_options", split up --advertise-refs code
The "advertise capabilities" mode of serve.c added in ed10cb952d3 (serve: introduce git-serve, 2018-03-15) is only used by the http-backend.c to call {upload,receive}-pack with the --advertise-refs parameter. See 42526b478e3 (Add stateless RPC options to upload-pack, receive-pack, 2009-10-30). Let's just make cmd_upload_pack() take the two (v2) or three (v2) parameters the the v2/v1 servicing functions need directly, and pass those in via the function signature. The logic of whether daemon mode is implied by the timeout belongs in the v1 function (only used there). Once we split up the "advertise v2 refs" from "serve v2 request" it becomes clear that v2 never cared about those in combination. The only time it mattered was for v1 to emit its ref advertisement, in that case we wanted to emit the smart-http-only "no-done" capability. Since we only do that in the --advertise-refs codepath let's just have it set "do_done" itself in v1's upload_pack() just before send_ref(), at that point --advertise-refs and --stateless-rpc in combination are redundant (the only user is get_info_refs() in http-backend.c), so we can just pass in --advertise-refs only. Since we need to touch all the serve() and advertise_capabilities() codepaths let's rename them to less clever and obvious names, it's been suggested numerous times, the latest of which is [1]'s suggestion for protocol_v2_serve_loop(). Let's go with that. 1. https://lore.kernel.org/git/CAFQ2z_NyGb8rju5CKzmo6KhZXD0Dp21u-BbyCb2aNxLEoSPRJw@mail.gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/upload-pack.c25
-rw-r--r--http-backend.c2
-rw-r--r--serve.c18
-rw-r--r--serve.h8
-rw-r--r--t/helper/test-serve-v2.c14
-rw-r--r--upload-pack.c18
-rw-r--r--upload-pack.h10
7 files changed, 42 insertions, 53 deletions
diff --git a/builtin/upload-pack.c b/builtin/upload-pack.c
index 6da8fa2..8506030 100644
--- a/builtin/upload-pack.c
+++ b/builtin/upload-pack.c
@@ -16,16 +16,17 @@ int cmd_upload_pack(int argc, const char **argv, const char *prefix)
{
const char *dir;
int strict = 0;
- struct upload_pack_options opts = { 0 };
- struct serve_options serve_opts = SERVE_OPTIONS_INIT;
+ int advertise_refs = 0;
+ int stateless_rpc = 0;
+ int timeout = 0;
struct option options[] = {
- OPT_BOOL(0, "stateless-rpc", &opts.stateless_rpc,
+ OPT_BOOL(0, "stateless-rpc", &stateless_rpc,
N_("quit after a single request/response exchange")),
- OPT_BOOL(0, "advertise-refs", &opts.advertise_refs,
+ OPT_BOOL(0, "advertise-refs", &advertise_refs,
N_("exit immediately after initial ref advertisement")),
OPT_BOOL(0, "strict", &strict,
N_("do not try <directory>/.git/ if <directory> is no Git directory")),
- OPT_INTEGER(0, "timeout", &opts.timeout,
+ OPT_INTEGER(0, "timeout", &timeout,
N_("interrupt transfer after <n> seconds of inactivity")),
OPT_END()
};
@@ -38,9 +39,6 @@ int cmd_upload_pack(int argc, const char **argv, const char *prefix)
if (argc != 1)
usage_with_options(upload_pack_usage, options);
- if (opts.timeout)
- opts.daemon_mode = 1;
-
setup_path();
dir = argv[0];
@@ -50,21 +48,22 @@ int cmd_upload_pack(int argc, const char **argv, const char *prefix)
switch (determine_protocol_version_server()) {
case protocol_v2:
- serve_opts.advertise_capabilities = opts.advertise_refs;
- serve_opts.stateless_rpc = opts.stateless_rpc;
- serve(&serve_opts);
+ if (advertise_refs)
+ protocol_v2_advertise_capabilities();
+ else
+ protocol_v2_serve_loop(stateless_rpc);
break;
case protocol_v1:
/*
* v1 is just the original protocol with a version string,
* so just fall through after writing the version string.
*/
- if (opts.advertise_refs || !opts.stateless_rpc)
+ if (advertise_refs || !stateless_rpc)
packet_write_fmt(1, "version 1\n");
/* fallthrough */
case protocol_v0:
- upload_pack(&opts);
+ upload_pack(advertise_refs, stateless_rpc, timeout);
break;
case protocol_unknown_version:
BUG("unknown protocol version");
diff --git a/http-backend.c b/http-backend.c
index b329bf6..d37463c 100644
--- a/http-backend.c
+++ b/http-backend.c
@@ -534,7 +534,7 @@ static void get_info_refs(struct strbuf *hdr, char *arg)
if (service_name) {
const char *argv[] = {NULL /* service name */,
- "--stateless-rpc", "--advertise-refs",
+ "--advertise-refs",
".", NULL};
struct rpc_service *svc = select_service(hdr, service_name);
diff --git a/serve.c b/serve.c
index 412c2cd..1817edc 100644
--- a/serve.c
+++ b/serve.c
@@ -106,7 +106,7 @@ static struct protocol_capability capabilities[] = {
},
};
-static void advertise_capabilities(void)
+void protocol_v2_advertise_capabilities(void)
{
struct strbuf capability = STRBUF_INIT;
struct strbuf value = STRBUF_INIT;
@@ -303,24 +303,16 @@ static int process_request(void)
return 0;
}
-/* Main serve loop for protocol version 2 */
-void serve(struct serve_options *options)
+void protocol_v2_serve_loop(int stateless_rpc)
{
- if (options->advertise_capabilities || !options->stateless_rpc) {
- advertise_capabilities();
- /*
- * If only the list of capabilities was requested exit
- * immediately after advertising capabilities
- */
- if (options->advertise_capabilities)
- return;
- }
+ if (!stateless_rpc)
+ protocol_v2_advertise_capabilities();
/*
* If stateless-rpc was requested then exit after
* a single request/response exchange
*/
- if (options->stateless_rpc) {
+ if (stateless_rpc) {
process_request();
} else {
for (;;)
diff --git a/serve.h b/serve.h
index 56da77a..f946cf9 100644
--- a/serve.h
+++ b/serve.h
@@ -1,11 +1,7 @@
#ifndef SERVE_H
#define SERVE_H
-struct serve_options {
- unsigned advertise_capabilities;
- unsigned stateless_rpc;
-};
-#define SERVE_OPTIONS_INIT { 0 }
-void serve(struct serve_options *options);
+void protocol_v2_advertise_capabilities(void);
+void protocol_v2_serve_loop(int stateless_rpc);
#endif /* SERVE_H */
diff --git a/t/helper/test-serve-v2.c b/t/helper/test-serve-v2.c
index aee35e5..28e905a 100644
--- a/t/helper/test-serve-v2.c
+++ b/t/helper/test-serve-v2.c
@@ -10,12 +10,12 @@ static char const * const serve_usage[] = {
int cmd__serve_v2(int argc, const char **argv)
{
- struct serve_options opts = SERVE_OPTIONS_INIT;
-
+ int stateless_rpc = 0;
+ int advertise_capabilities = 0;
struct option options[] = {
- OPT_BOOL(0, "stateless-rpc", &opts.stateless_rpc,
+ OPT_BOOL(0, "stateless-rpc", &stateless_rpc,
N_("quit after a single request/response exchange")),
- OPT_BOOL(0, "advertise-capabilities", &opts.advertise_capabilities,
+ OPT_BOOL(0, "advertise-capabilities", &advertise_capabilities,
N_("exit immediately after advertising capabilities")),
OPT_END()
};
@@ -25,7 +25,11 @@ int cmd__serve_v2(int argc, const char **argv)
argc = parse_options(argc, argv, prefix, options, serve_usage,
PARSE_OPT_KEEP_DASHDASH |
PARSE_OPT_KEEP_UNKNOWN);
- serve(&opts);
+
+ if (advertise_capabilities)
+ protocol_v2_advertise_capabilities();
+ else
+ protocol_v2_serve_loop(stateless_rpc);
return 0;
}
diff --git a/upload-pack.c b/upload-pack.c
index ed60a9a..fc38f04 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -1214,7 +1214,7 @@ static int send_ref(const char *refname, const struct object_id *oid,
" allow-tip-sha1-in-want" : "",
(data->allow_uor & ALLOW_REACHABLE_SHA1) ?
" allow-reachable-sha1-in-want" : "",
- data->stateless_rpc ? " no-done" : "",
+ data->no_done ? " no-done" : "",
symref_info.buf,
data->allow_filter ? " filter" : "",
session_id.buf,
@@ -1329,7 +1329,8 @@ static int upload_pack_config(const char *var, const char *value, void *cb_data)
return parse_hide_refs_config(var, value, "uploadpack");
}
-void upload_pack(struct upload_pack_options *options)
+void upload_pack(const int advertise_refs, const int stateless_rpc,
+ const int timeout)
{
struct packet_reader reader;
struct upload_pack_data data;
@@ -1338,14 +1339,17 @@ void upload_pack(struct upload_pack_options *options)
git_config(upload_pack_config, &data);
- data.stateless_rpc = options->stateless_rpc;
- data.daemon_mode = options->daemon_mode;
- data.timeout = options->timeout;
+ data.stateless_rpc = stateless_rpc;
+ data.timeout = timeout;
+ if (data.timeout)
+ data.daemon_mode = 1;
head_ref_namespaced(find_symref, &data.symref);
- if (options->advertise_refs || !data.stateless_rpc) {
+ if (advertise_refs || !data.stateless_rpc) {
reset_timeout(data.timeout);
+ if (advertise_refs)
+ data.no_done = 1;
head_ref_namespaced(send_ref, &data);
for_each_namespaced_ref(send_ref, &data);
advertise_shallow_grafts(1);
@@ -1355,7 +1359,7 @@ void upload_pack(struct upload_pack_options *options)
for_each_namespaced_ref(check_ref, NULL);
}
- if (!options->advertise_refs) {
+ if (!advertise_refs) {
packet_reader_init(&reader, 0, NULL, 0,
PACKET_READ_CHOMP_NEWLINE |
PACKET_READ_DIE_ON_ERR_PACKET);
diff --git a/upload-pack.h b/upload-pack.h
index 63e3252..d6ee25e 100644
--- a/upload-pack.h
+++ b/upload-pack.h
@@ -1,14 +1,8 @@
#ifndef UPLOAD_PACK_H
#define UPLOAD_PACK_H
-struct upload_pack_options {
- int stateless_rpc;
- int advertise_refs;
- unsigned int timeout;
- int daemon_mode;
-};
-
-void upload_pack(struct upload_pack_options *options);
+void upload_pack(const int advertise_refs, const int stateless_rpc,
+ const int timeout);
struct repository;
struct packet_reader;